Specifications: Module property:Non-isolation buck Rectification mode:Non-synchronous rectifier Input voltage:3V-40V Output voltage:1.3V-35V Output current:Rated current is 2Amaximum 3A(Additional heatsink is required) Conversion efficiency:92%( highest ) Switching frequency:65KHz Output ripple:30mV( maximum ) Load regulation:0.5% Voltage regulation: 2.5% Work temperature:-Minus 40 degrees - 85 degrees dimension:43mm*21mm*14mm(L*W*G) NOTE:This can't be used to step up Voltage Package Include: 1 x Step Down Module LM2596